⊿ Point. {R} Glossary. ◢ Keyword: T. ▰ Sources. 〓 Books [B] ◥ University. {q} PhD. ⏫ THEMES. ⏫ Big Data. [B] Big Data. ⚫ USA. ↂ EndNote. ☝️ BD Dummies. SQL. Programming language for management and use of relational databases Structured Query Language (SQL) (pronounced S-Q-L; historically "sequel")[4][5] is a domain-specific language used to manage data, especially in a relational database management system (RDBMS).
It is particularly useful in handling structured data, i.e., data incorporating relations among entities and variables. Originally based upon relational algebra and tuple relational calculus, SQL consists of many types of statements,[6] which may be informally classed as sublanguages, commonly: Data query Language (DQL), Data Definition Language (DDL), Data Control Language (DCL), and Data Manipulation Language (DML).[7] The scope of SQL includes data query, data manipulation (insert, update, and delete), data definition (schema creation and modification), and data access control. SQL was one of the first commercial languages to use Edgar F.
SQL was initially developed at IBM by Donald D. Procedural extensions [edit] Hibernate (framework) Object–relational mapping tool Hibernate is free software that is distributed under the GNU Lesser General Public License 2.1. The mapping of Java classes to database tables is implemented by the configuration of an XML file or by using Java Annotations.
When using an XML file, Hibernate can generate skeleton source code for the persistence classes. This is auxiliary when annotations are used. Hibernate can use the XML file or the Java annotations to maintain the database schema. Hibernate supports the mapping of custom value types. This makes the following scenarios possible: Overriding the default SQL type when mapping a column to a property.Mapping Java Enums to columns as though they were regular properties.: 89–90 Mapping a single property to multiple columns. Definition: Objects in an object-oriented application follow OOP principles, while objects in the back-end follow database normalization principles, resulting in different representation requirements. [edit] Software components. Hibernate (framework) - Hibernate Query Language (HQL)
Object–relational mapping tool Hibernate is free software that is distributed under the GNU Lesser General Public License 2.1. The mapping of Java classes to database tables is implemented by the configuration of an XML file or by using Java Annotations. When using an XML file, Hibernate can generate skeleton source code for the persistence classes. This is auxiliary when annotations are used. Hibernate can use the XML file or the Java annotations to maintain the database schema. Hibernate supports the mapping of custom value types. Overriding the default SQL type when mapping a column to a property.Mapping Java Enums to columns as though they were regular properties.Mapping a single property to multiple columns. Definition: Objects in an object-oriented application follow OOP principles, while objects in the back-end follow database normalization principles, resulting in different representation requirements.
In September 2015, Hibernate ORM 5.0.2 Final was released.